Cell Stem Cell:发现结肠癌与肠道干细胞之间关系的新证据

2011-04-05 MedSci原创 MedSci原创

巴塞罗那生物医学研究所(IRB)科学家对干细胞与癌症间的关系做了最新的报道,使得人们对于癌症的诊断与治疗有了新的认识工作。 生物医学研究所的研究人员已经发现,大肠癌细胞促发了一组与肠道干细胞中相类似的基因。研究员Eduard Batlle建议,大肠癌患者要对其肠上皮进行基因测试,从而预测其复发的高风险。该研究结果,将发布在本周《细胞干细胞》(Cell Stem Cell)上,对于诊断和治疗这

巴塞罗那生物医学研究所(IRB)科学家对干细胞与癌症间的关系做了最新的报道,使得人们对于癌症的诊断与治疗有了新的认识工作。

生物医学研究所的研究人员已经发现,大肠癌细胞促发了一组与肠道干细胞中相类似的基因。研究员Eduard Batlle建议,大肠癌患者要对其肠上皮进行基因测试,从而预测其复发的高风险。该研究结果,将发布在本周《细胞干细胞》(Cell Stem Cell)上,对于诊断和治疗这种疾病提供新的可能性。

在世界范围内,结肠癌是诱发死亡的第二大癌症诱因。目前这种疾病的治疗主要是采用手术和化疗相结合的方法。治疗获得成功的患者病情逐渐得到缓解,然而接近40%患者在数月和几年内复发。这表明肿瘤中的细胞会再次诱发病情,但是目前对此方面的生物原因仍知之甚少。

癌症的"硬核"

由Anna Merlos-Suárez和其他研究者共同指导的研究已经揭示了肠道干细胞(在肠道内产生所有细胞的非专门细胞)与大肠癌间的密切关系。研究人员将在健康小肠的干细胞和和特殊细胞中活跃的基因,与来自患者肿瘤细胞中活跃的基因相比较。结果表明结肠癌患者激活的基因,与在干细胞中激活的基因组相类似。激活的基因数量越多,患者癌症扩散和复发的几率也越高。

这些活跃在肿瘤细胞群中的干细胞基因,被称为肿瘤干细胞。当Batlle的团队将这些细胞移植给小鼠,形成肿瘤。肿瘤进行自我层次性组织,仅特定的细胞-肿瘤干细胞能够启动和扩散癌症。

干细胞究竟是如何促使癌症扩散和复发的?根据定义,干细胞可使人体组织更新,如肠上皮组织,并能每天产生5克的肠上皮细胞。科学家认为肿瘤能够利用这些细胞的能力,进行无限更新,从而不断生长和扩散。此外,大多数细胞有数天甚至数月的生命周期,例如肠上皮细胞,而干细胞可存活数年,从而增加DNA集聚损伤以及转化为癌细胞的可能性。

肿瘤学家面临的最大障碍之一是,缺少确认肿瘤患者有高复发风险的工具。发现肠道干细胞以及癌症传播间的密切联系,是一大重要突破。大肠癌需要一组特定类型细胞以促其生长的假设,已在其他类型的癌症中得到表现,包括神经胶质瘤、某种类型的淋巴瘤或乳腺癌。这一发现对于抵抗癌症:与肿瘤干细胞的斗争开启了新道路。(生物谷Bioon.com)

英文链接:http://www.medicalnewstoday.com/articles/219515.php

版权声明:
本网站所有内容来源注明为“梅斯医学”或“MedSci原创”的文字、图片和音视频资料,版权均属于梅斯医学所有。非经授权,任何媒体、网站或个人不得转载,授权转载时须注明来源为“梅斯医学”。其它来源的文章系转载文章,或“梅斯号”自媒体发布的文章,仅系出于传递更多信息之目的,本站仅负责审核内容合规,其内容不代表本站立场,本站不负责内容的准确性和版权。如果存在侵权、或不希望被转载的媒体或个人可与我们联系,我们将立即进行删除处理。
在此留言
评论区 (5)
#插入话题
  1. [GetPortalCommentsPageByObjectIdResponse(id=1958641, encodeId=bab91958641c1, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Wed Jan 11 02:51:00 CST 2012, time=2012-01-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1794323, encodeId=d4e01e94323ed, content=<a href='/topic/show?id=82b416e79f5' target=_blank style='color:#2F92EE;'>#stem cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16779, encryptionId=82b416e79f5, topicName=stem cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=hb2008ye, createdTime=Sun May 15 21:51:00 CST 2011, time=2011-05-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1868428, encodeId=4d0818684286b, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Mon Nov 07 02:51:00 CST 2011, time=2011-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1459969, encodeId=3f231459969b0, content=<a href='/topic/show?id=0c3a81664b4' target=_blank style='color:#2F92EE;'>#肠道干细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81664, encryptionId=0c3a81664b4, topicName=肠道干细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c8316217526, createdName=mhm291, createdTime=Thu Apr 07 05:51:00 CST 2011, time=2011-04-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1481765, encodeId=2f181481e655d, content=<a href='/topic/show?id=8cc416e78f3' target=_blank style='color:#2F92EE;'>#STEM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16778, encryptionId=8cc416e78f3, topicName=STEM)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=778d36, createdName=柳叶一刀, createdTime=Thu Apr 07 05:51:00 CST 2011, time=2011-04-07, status=1, ipAttribution=)]
    2012-01-11 维他命
  2. [GetPortalCommentsPageByObjectIdResponse(id=1958641, encodeId=bab91958641c1, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Wed Jan 11 02:51:00 CST 2012, time=2012-01-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1794323, encodeId=d4e01e94323ed, content=<a href='/topic/show?id=82b416e79f5' target=_blank style='color:#2F92EE;'>#stem cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16779, encryptionId=82b416e79f5, topicName=stem cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=hb2008ye, createdTime=Sun May 15 21:51:00 CST 2011, time=2011-05-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1868428, encodeId=4d0818684286b, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Mon Nov 07 02:51:00 CST 2011, time=2011-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1459969, encodeId=3f231459969b0, content=<a href='/topic/show?id=0c3a81664b4' target=_blank style='color:#2F92EE;'>#肠道干细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81664, encryptionId=0c3a81664b4, topicName=肠道干细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c8316217526, createdName=mhm291, createdTime=Thu Apr 07 05:51:00 CST 2011, time=2011-04-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1481765, encodeId=2f181481e655d, content=<a href='/topic/show?id=8cc416e78f3' target=_blank style='color:#2F92EE;'>#STEM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16778, encryptionId=8cc416e78f3, topicName=STEM)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=778d36, createdName=柳叶一刀, createdTime=Thu Apr 07 05:51:00 CST 2011, time=2011-04-07, status=1, ipAttribution=)]
  3. [GetPortalCommentsPageByObjectIdResponse(id=1958641, encodeId=bab91958641c1, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Wed Jan 11 02:51:00 CST 2012, time=2012-01-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1794323, encodeId=d4e01e94323ed, content=<a href='/topic/show?id=82b416e79f5' target=_blank style='color:#2F92EE;'>#stem cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16779, encryptionId=82b416e79f5, topicName=stem cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=hb2008ye, createdTime=Sun May 15 21:51:00 CST 2011, time=2011-05-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1868428, encodeId=4d0818684286b, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Mon Nov 07 02:51:00 CST 2011, time=2011-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1459969, encodeId=3f231459969b0, content=<a href='/topic/show?id=0c3a81664b4' target=_blank style='color:#2F92EE;'>#肠道干细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81664, encryptionId=0c3a81664b4, topicName=肠道干细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c8316217526, createdName=mhm291, createdTime=Thu Apr 07 05:51:00 CST 2011, time=2011-04-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1481765, encodeId=2f181481e655d, content=<a href='/topic/show?id=8cc416e78f3' target=_blank style='color:#2F92EE;'>#STEM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16778, encryptionId=8cc416e78f3, topicName=STEM)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=778d36, createdName=柳叶一刀, createdTime=Thu Apr 07 05:51:00 CST 2011, time=2011-04-07, status=1, ipAttribution=)]
  4. [GetPortalCommentsPageByObjectIdResponse(id=1958641, encodeId=bab91958641c1, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Wed Jan 11 02:51:00 CST 2012, time=2012-01-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1794323, encodeId=d4e01e94323ed, content=<a href='/topic/show?id=82b416e79f5' target=_blank style='color:#2F92EE;'>#stem cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16779, encryptionId=82b416e79f5, topicName=stem cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=hb2008ye, createdTime=Sun May 15 21:51:00 CST 2011, time=2011-05-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1868428, encodeId=4d0818684286b, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Mon Nov 07 02:51:00 CST 2011, time=2011-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1459969, encodeId=3f231459969b0, content=<a href='/topic/show?id=0c3a81664b4' target=_blank style='color:#2F92EE;'>#肠道干细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81664, encryptionId=0c3a81664b4, topicName=肠道干细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c8316217526, createdName=mhm291, createdTime=Thu Apr 07 05:51:00 CST 2011, time=2011-04-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1481765, encodeId=2f181481e655d, content=<a href='/topic/show?id=8cc416e78f3' target=_blank style='color:#2F92EE;'>#STEM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16778, encryptionId=8cc416e78f3, topicName=STEM)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=778d36, createdName=柳叶一刀, createdTime=Thu Apr 07 05:51:00 CST 2011, time=2011-04-07, status=1, ipAttribution=)]
  5. [GetPortalCommentsPageByObjectIdResponse(id=1958641, encodeId=bab91958641c1, content=<a href='/topic/show?id=dbe6445416' target=_blank style='color:#2F92EE;'>#CEL#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=46, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4454, encryptionId=dbe6445416, topicName=CEL)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=c3ff68, createdName=维他命, createdTime=Wed Jan 11 02:51:00 CST 2012, time=2012-01-11, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1794323, encodeId=d4e01e94323ed, content=<a href='/topic/show?id=82b416e79f5' target=_blank style='color:#2F92EE;'>#stem cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=36, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16779, encryptionId=82b416e79f5, topicName=stem cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=4c37265, createdName=hb2008ye, createdTime=Sun May 15 21:51:00 CST 2011, time=2011-05-15, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1868428, encodeId=4d0818684286b, content=<a href='/topic/show?id=fd764459a8' target=_blank style='color:#2F92EE;'>#Cell#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=35, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=4459, encryptionId=fd764459a8, topicName=Cell)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=524d95, createdName=zhaozhouchifen, createdTime=Mon Nov 07 02:51:00 CST 2011, time=2011-11-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1459969, encodeId=3f231459969b0, content=<a href='/topic/show?id=0c3a81664b4' target=_blank style='color:#2F92EE;'>#肠道干细胞#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=41, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=81664, encryptionId=0c3a81664b4, topicName=肠道干细胞)], attachment=null, authenticateStatus=null, createdAvatar=null, createdBy=c8316217526, createdName=mhm291, createdTime=Thu Apr 07 05:51:00 CST 2011, time=2011-04-07, status=1, ipAttribution=), GetPortalCommentsPageByObjectIdResponse(id=1481765, encodeId=2f181481e655d, content=<a href='/topic/show?id=8cc416e78f3' target=_blank style='color:#2F92EE;'>#STEM#</a>, beContent=null, objectType=article, channel=null, level=null, likeNumber=42, replyNumber=0, topicName=null, topicId=null, topicList=[TopicDto(id=16778, encryptionId=8cc416e78f3, topicName=STEM)], attachment=null, authenticateStatus=null, createdAvatar=, createdBy=778d36, createdName=柳叶一刀, createdTime=Thu Apr 07 05:51:00 CST 2011, time=2011-04-07, status=1, ipAttribution=)]
    2011-04-07 柳叶一刀

相关资讯

2009结肠癌治疗指南(pdf)

2009结肠癌治疗指南.pdf

2010版结肠癌NCCN临床指南中文版

2010结肠癌NCCN临床指南中文版.pdf

2011年NCCN结肠癌临床实践指南(可下载)

2011NCCN结肠癌临床实践指南.pdf